Invenio-Community-Themes-TUW 2026.0.1

The themed communities feature in InvenioRDM

Since version 13, InvenioRDM allows communities to be themed.

Under the hood, it works by registering the CommunityThemeJinjaLoader for community view functions. This is a custom Jinja template loader that renders alternative templates from a directory based on the community’s theme brand. If either of the templates involved in the rendering chain doesn’t have such an override, the “normal” template will be rendered instead. Thus, it is possible to selectively override any Jinja template involved in the rendering of a community by simply placing the desired templates in the correct path (with a themes/${BRAND}/ prefix).

For instance, the standard header template for communities is located under templates/semantic-ui/invenio_communities/details/header.html. If one wants to provide a custom template for a community with the meretneith brand, it would be placed under: templates/themes/meretneith/invenio_communities/details/header.html (the semantic-ui part can be omitted).

The theme for a community (including the brand and a limited set of custom style) can be set via the invenio shell REPL, with code snippets described in the InvenioRDM documentation, or below.

If Jinja template overrides and the limited styling is enough, then adding the templates to the InvenioRDM project definition will be sufficient. However, if extra CSS styling or custom JS is required, then it will become necessary to use mechanisms only available to extensions like this one here, or the project’s local site/ package.

Provided community themes

The following community themes are provided by this package:

from invenio_communities.proxies import current_communities
from invenio_access.permissions import system_identity

service = current_communities.service
meretneith = service.read(system_identity, "meretneith")
meretneith_theme = {
  "theme": {
     "brand": "meretneith",
     "enabled": True,
  }
}

service.update(system_identity, "meretneith", {**meretneith.data, **meretneith_theme})